* [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
@ 2013-02-13 0:26 Peter Hurley
2013-02-13 0:39 ` H. Peter Anvin
0 siblings, 1 reply; 11+ messages in thread
From: Peter Hurley @ 2013-02-13 0:26 UTC (permalink / raw)
To: H. Peter Anvin; +Cc: linux-kernel, kvm
[-- Attachment #1: Type: text/plain, Size: 1054 bytes --]
With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA
device/console):
[ 0.666410] udevd[97]: starting version 175
[ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
and boots to an initramfs prompt.
git bisect (log attached) blames:
commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f
Merge: 3596f5b 949db15
Author: H. Peter Anvin <hpa@linux.intel.com>
Date: Fri Jan 25 16:31:21 2013 -0800
Merge tag 'v3.8-rc5' into x86/mm
The __pa() fixup series that follows touches KVM code that is not
present in the existing branch based on v3.7-rc5, so merge in the
current upstream from Linus.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This only happens with the VGA device/console but that is the default
configuration for Ubuntu/KVM because it blacklists pretty much every fb
driver.
I can confirm this _does not_ happen with same config on mainline
3.8-rc7.
Just confirmed that the same fault occurs with next-20130211.
Regards,
Peter Hurley
[-- Attachment #2: segfault_bisect.log --]
[-- Type: text/x-log, Size: 4227 bytes --]
git bisect start
# good: [6bacaa9ddacb71c691d32c678d37bc59ffc71fac] Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
git bisect good 6bacaa9ddacb71c691d32c678d37bc59ffc71fac
# bad: [164708bec016c6ceb76a2bb2e29b086bf0ad4e37] Add linux-next specific files for 20130204
git bisect bad 164708bec016c6ceb76a2bb2e29b086bf0ad4e37
# good: [0231bb5336758426b44ccd798ccd3c5419c95d58] perf: Fix event group context move
git bisect good 0231bb5336758426b44ccd798ccd3c5419c95d58
# good: [0ba3b2ccc72b3df5c305d61f59d93ab0f0e87991] USB: ftdi_sio: add Zolix FTDI PID
git bisect good 0ba3b2ccc72b3df5c305d61f59d93ab0f0e87991
# good: [8b31849a113a8868eb2de692be5c9ecadae93ac9] Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
git bisect good 8b31849a113a8868eb2de692be5c9ecadae93ac9
# good: [972f7c832229781f09f03284cde484ccdb44d3ee] x86, doc: Boot protocol 2.12 is in 3.8
git bisect good 972f7c832229781f09f03284cde484ccdb44d3ee
# good: [da57b936ea7b328d1009b37a0a0ad1f14148e104] xtensa: Provide dummy dma_mmap_coherent() and dma_get_sgtable()
git bisect good da57b936ea7b328d1009b37a0a0ad1f14148e104
# good: [1927661b1748480692f1fa2c390fe031c86d862a] ASoC: fsl: fix snd-soc-imx-pcm module build
git bisect good 1927661b1748480692f1fa2c390fe031c86d862a
# good: [cff3c124a7e82ca0ea1d6864b27ef18c403c0773] sched/debug: Fix format string for 32-bit platforms
git bisect good cff3c124a7e82ca0ea1d6864b27ef18c403c0773
# good: [ce4a3d52888a95473914bd54bcf6c566014fc03e] [media] radio: set vfl_dir correctly to fix modulator regression
git bisect good ce4a3d52888a95473914bd54bcf6c566014fc03e
# good: [d36b7b9643faca8aab8cee8d824f75c800b337ac] Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent
git bisect good d36b7b9643faca8aab8cee8d824f75c800b337ac
# good: [0ce82b7f7b7373b16ecf7b5725e21e2975204500] mtd: nand: onfi don't WARN if we are in 16 bits mode
git bisect good 0ce82b7f7b7373b16ecf7b5725e21e2975204500
# good: [58c49df378cde4ff64172483d593a1a5689c13a8] mtip32xx: fix for crash when the device surprise removed during rebuild
git bisect good 58c49df378cde4ff64172483d593a1a5689c13a8
# good: [11f6d5d6564613befc240ebf9620c80fabe74c1a] Merge remote-tracking branch 'spi-mb/spi-next'
git bisect good 11f6d5d6564613befc240ebf9620c80fabe74c1a
# bad: [df3de4831a52f71e3f5ce3ca67de885f9bcf6fed] Merge remote-tracking branch 'driver-core/driver-core-next'
git bisect bad df3de4831a52f71e3f5ce3ca67de885f9bcf6fed
# good: [ce68648792ba859fe11075f507909970ae5e1ba4] kvm tools: remove unused field from virtio-blk
git bisect good ce68648792ba859fe11075f507909970ae5e1ba4
# bad: [81f3c277544d5359e4bf3fdfd2c4495a288d67ff] Merge remote-tracking branch 'fw-nohz/nohz/next'
git bisect bad 81f3c277544d5359e4bf3fdfd2c4495a288d67ff
# good: [0e04f53a4310c2376a40a3eaf4cd74822534b7c2] Merge branch 'x86/microcode'
git bisect good 0e04f53a4310c2376a40a3eaf4cd74822534b7c2
# bad: [e761e0bbb991c0a0eaf59b5d61feebf3185f58bd] Merge remote-tracking branch 'rcu/rcu/next'
git bisect bad e761e0bbb991c0a0eaf59b5d61feebf3185f58bd
# good: [38dbe0b137bfe6ea92be495017885c0785179a02] tracing: Remove second iterator initializer
git bisect good 38dbe0b137bfe6ea92be495017885c0785179a02
# bad: [152aa0e8ad77111b82ebe655c559b58f5dec0981] Merge remote-tracking branch 'tip/auto-latest'
git bisect bad 152aa0e8ad77111b82ebe655c559b58f5dec0981
# bad: [5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d] x86, kvm: Fix kvm's use of __pa() on percpu areas
git bisect bad 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d
# good: [6a3956bd242926f8956992f6ed7805b0811be003] x86/lguest: Use __pa_symbol instead of __pa on C visible symbols
git bisect good 6a3956bd242926f8956992f6ed7805b0811be003
# bad: [7b5c4a65cc27f017c170b025f8d6d75dabb11c6f] Merge tag 'v3.8-rc5' into x86/mm
git bisect bad 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f
# good: [5e4bf1a55da976a5ed60901bb8801f1024ef9774] x86/mm: Don't flush the TLB on #WP pmd fixups
git bisect good 5e4bf1a55da976a5ed60901bb8801f1024ef9774
# good: [3596f5bb0a6afd01a784bfe120f420edbbf82861] Merge branch 'x86/mm' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/tip/tip into x86/mm
git bisect good 3596f5bb0a6afd01a784bfe120f420edbbf82861
^ permalink raw reply [flat|nested] 11+ messages in thread* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-13 0:26 [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d Peter Hurley @ 2013-02-13 0:39 ` H. Peter Anvin 2013-02-13 10:51 ` Gleb Natapov 0 siblings, 1 reply; 11+ messages in thread From: H. Peter Anvin @ 2013-02-13 0:39 UTC (permalink / raw) To: Peter Hurley; +Cc: linux-kernel, kvm On 02/12/2013 04:26 PM, Peter Hurley wrote: > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > device/console): > > [ 0.666410] udevd[97]: starting version 175 > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > and boots to an initramfs prompt. > > git bisect (log attached) blames: > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > Merge: 3596f5b 949db15 > Author: H. Peter Anvin <hpa@linux.intel.com> > Date: Fri Jan 25 16:31:21 2013 -0800 > > Merge tag 'v3.8-rc5' into x86/mm > > The __pa() fixup series that follows touches KVM code that is not > present in the existing branch based on v3.7-rc5, so merge in the > current upstream from Linus. > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > This only happens with the VGA device/console but that is the default > configuration for Ubuntu/KVM because it blacklists pretty much every fb > driver. > I am guessing this is another bad use of __pa()... need to look into that. -hpa ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-13 0:39 ` H. Peter Anvin @ 2013-02-13 10:51 ` Gleb Natapov 2013-02-13 11:57 ` Peter Hurley 0 siblings, 1 reply; 11+ messages in thread From: Gleb Natapov @ 2013-02-13 10:51 UTC (permalink / raw) To: H. Peter Anvin; +Cc: Peter Hurley, linux-kernel, kvm On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > device/console): > > > > [ 0.666410] udevd[97]: starting version 175 > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > and boots to an initramfs prompt. > > > > git bisect (log attached) blames: > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > Merge: 3596f5b 949db15 > > Author: H. Peter Anvin <hpa@linux.intel.com> > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > The __pa() fixup series that follows touches KVM code that is not > > present in the existing branch based on v3.7-rc5, so merge in the > > current upstream from Linus. > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > This only happens with the VGA device/console but that is the default > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > driver. > > > > I am guessing this is another bad use of __pa()... need to look into that. > He is using 64bit guest and on those __pa() happens to be working. Is it possible that slow_virt_to_phys() does not work as expected? Peter (the bug reporter :)) can you run your guest kernel with loglevel=7 and attach send me console output? -- Gleb. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-13 10:51 ` Gleb Natapov @ 2013-02-13 11:57 ` Peter Hurley 2013-02-18 22:59 ` Marcelo Tosatti 0 siblings, 1 reply; 11+ messages in thread From: Peter Hurley @ 2013-02-13 11:57 UTC (permalink / raw) To: Gleb Natapov; +Cc: H. Peter Anvin, linux-kernel, kvm [-- Attachment #1: Type: text/plain, Size: 2717 bytes --] On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > device/console): > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > and boots to an initramfs prompt. > > > > > > git bisect (log attached) blames: > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > Merge: 3596f5b 949db15 > > > Author: H. Peter Anvin <hpa@linux.intel.com> > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > present in the existing branch based on v3.7-rc5, so merge in the > > > current upstream from Linus. > > > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > > This only happens with the VGA device/console but that is the default > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > driver. > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > > He is using 64bit guest and on those __pa() happens to be working. Is it > possible that slow_virt_to_phys() does not work as expected? Peter (the > bug reporter :)) can you run your guest kernel with loglevel=7 and > attach send me console output? Attached. BTW, this message happens on 'good' boots too: [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: at /home/peter/src/kernels/next/arch/x86/kernel/pvclock.c:182 pvclock_init_vsyscall+0x22/0x60() [ 0.000000] Hardware name: Bochs [ 0.000000] Modules linked in: [ 0.000000] Pid: 0, comm: swapper Not tainted 3.8.0-next-20130204-xeon #20130204 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff8105812f>] warn_slowpath_common+0x7f/0xc0 [ 0.000000] [<ffffffff8105818a>] warn_slowpath_null+0x1a/0x20 [ 0.000000] [<ffffffff81d20521>] pvclock_init_vsyscall+0x22/0x60 [ 0.000000] [<ffffffff81d20480>] kvm_setup_vsyscall_timeinfo+0x74/0xd8 [ 0.000000] [<ffffffff81d201d1>] kvm_guest_init+0xd0/0xe9 [ 0.000000] [<ffffffff81d13f7c>] setup_arch+0xbee/0xcaf [ 0.000000] [<ffffffff816cbceb>] ? printk+0x61/0x63 [ 0.000000] [<ffffffff81d0cbc3>] start_kernel+0xd3/0x3f0 [ 0.000000] [<ffffffff81d0c5e4>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff81d0c6d7>] x86_64_start_kernel+0xf1/0x100 [ 0.000000] ---[ end trace b47bb564b2d6ec76 ]--- Regards, Peter Hurley [-- Attachment #2: segfault_dmesg.log --] [-- Type: text/x-log, Size: 25111 bytes --] [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.8.0-next-20130204-xeon (root@thor) (gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) ) #20130204 SMP PREEMPT Mon Feb 11 06:49:31 EST 2013 [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.8.0-next-20130204-xeon root=UUID=cc4fa0a9-18f9-4d5a-b4ec-0243574558a2 ro text loglevel=7 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009dbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009dc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007fffdfff] usable [ 0.000000] BIOS-e820: [mem 0x000000007fffe000-0x000000007fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: Bochs Bochs, BIOS Bochs 01/01/2007 [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: update [mem 0x00000000-0x0000ffff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] e820: last_pfn = 0x7fffe max_arch_pfn = 0x400000000 [ 0.000000] MTRR default type: write-back [ 0.000000] MTRR fixed ranges enabled: [ 0.000000] 00000-9FFFF write-back [ 0.000000] A0000-BFFFF uncachable [ 0.000000] C0000-FFFFF write-protect [ 0.000000] MTRR variable ranges enabled: [ 0.000000] 0 base 00E0000000 mask FFE0000000 uncachable [ 0.000000] 1 disabled [ 0.000000] 2 disabled [ 0.000000] 3 disabled [ 0.000000] 4 disabled [ 0.000000] 5 disabled [ 0.000000] 6 disabled [ 0.000000] 7 disabled [ 0.000000] PAT not supported by CPU. [ 0.000000] found SMP MP-table at [mem 0x000fdaa0-0x000fdaaf] mapped at [ffff8800000fdaa0] [ 0.000000] Base memory trampoline at [ffff880000097000] 97000 size 24576 [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] BRK [0x01f69000, 0x01f69fff] PGTABLE [ 0.000000] BRK [0x01f6a000, 0x01f6afff] PGTABLE [ 0.000000] BRK [0x01f6b000, 0x01f6bfff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x7fe00000-0x7fffdfff] [ 0.000000] [mem 0x7fe00000-0x7fffdfff] page 4k [ 0.000000] BRK [0x01f6c000, 0x01f6cfff] PGTABLE [ 0.000000] BRK [0x01f6d000, 0x01f6dfff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x7c000000-0x7fdfffff] [ 0.000000] [mem 0x7c000000-0x7fdfffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x00100000-0x7bffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x7bffffff] page 2M [ 0.000000] RAMDISK: [mem 0x3648e000-0x3723efff] [ 0.000000] ACPI: RSDP 00000000000fd8c0 00014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 000000007fffe470 00038 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 000000007fffff80 00074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 000000007fffe4b0 01121 (v01 BXPC BXDSDT 00000001 INTL 20100528) [ 0.000000] ACPI: FACS 000000007fffff40 00040 [ 0.000000] ACPI: SSDT 000000007ffffd70 001C1 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 000000007ffffc70 00090 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: HPET 000000007ffffc30 00038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.000000] ACPI: SSDT 000000007ffff5e0 00644 (v01 BXPC BXSSDTPC 00000001 INTL 20100528) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] No NUMA configuration found [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007fffdfff] [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x7fffdfff] [ 0.000000] NODE_DATA [mem 0x7fffb000-0x7fffdfff] [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 0:7fffa001, boot clock [ 0.000000] [ffffea0000000000-ffffea0001ffffff] PMD -> [ffff88007d600000-ffff88007f5fffff] on node 0 [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00010000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00010000-0x0009cfff] [ 0.000000] node 0: [mem 0x00100000-0x7fffdfff] [ 0.000000] On node 0 totalpages: 524171 [ 0.000000] DMA zone: 64 pages used for memmap [ 0.000000] DMA zone: 6 pages reserved [ 0.000000] DMA zone: 3981 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 8128 pages used for memmap [ 0.000000] DMA32 zone: 520190 pages, LIFO batch:31 [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled) [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 4, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] ACPI: IRQ0 used by override. [ 0.000000] ACPI: IRQ2 used by override. [ 0.000000] ACPI: IRQ5 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] ACPI: IRQ10 used by override. [ 0.000000] ACPI: IRQ11 used by override. [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] smpboot: Allowing 4 CPUs, 0 hotplug CPUs [ 0.000000] nr_irqs_gsi: 40 [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: at /home/peter/src/kernels/next/arch/x86/kernel/pvclock.c:182 pvclock_init_vsyscall+0x22/0x60() [ 0.000000] Hardware name: Bochs [ 0.000000] Modules linked in: [ 0.000000] Pid: 0, comm: swapper Not tainted 3.8.0-next-20130204-xeon #20130204 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff8105812f>] warn_slowpath_common+0x7f/0xc0 [ 0.000000] [<ffffffff8105818a>] warn_slowpath_null+0x1a/0x20 [ 0.000000] [<ffffffff81d20521>] pvclock_init_vsyscall+0x22/0x60 [ 0.000000] [<ffffffff81d20480>] kvm_setup_vsyscall_timeinfo+0x74/0xd8 [ 0.000000] [<ffffffff81d201d1>] kvm_guest_init+0xd0/0xe9 [ 0.000000] [<ffffffff81d13f7c>] setup_arch+0xbee/0xcaf [ 0.000000] [<ffffffff816cbceb>] ? printk+0x61/0x63 [ 0.000000] [<ffffffff81d0cbc3>] start_kernel+0xd3/0x3f0 [ 0.000000] [<ffffffff81d0c5e4>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff81d0c6d7>] x86_64_start_kernel+0xf1/0x100 [ 0.000000] ---[ end trace b47bb564b2d6ec76 ]--- [ 0.000000] PM: Registered nosave memory: 000000000009d000 - 000000000009e000 [ 0.000000] PM: Registered nosave memory: 000000000009e000 - 00000000000a0000 [ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000f0000 [ 0.000000] PM: Registered nosave memory: 00000000000f0000 - 0000000000100000 [ 0.000000] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:4 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff88007fc00000 s85568 r8192 d20928 u524288 [ 0.000000] pcpu-alloc: s85568 r8192 d20928 u524288 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 0 1 2 3 [ 0.000000] kvm-clock: cpu 0, msr 0:7fffa001, primary cpu clock [ 0.000000] KVM setup async PF for cpu 0 [ 0.000000] kvm-stealtime: cpu 0, msr 7fc0dec0 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515973 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.8.0-next-20130204-xeon root=UUID=cc4fa0a9-18f9-4d5a-b4ec-0243574558a2 ro text loglevel=7 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] __ex_table already sorted, skipping sort [ 0.000000] Memory: 2033356k/2097144k available (7059k kernel code, 460k absent, 63328k reserved, 6211k data, 1160k init) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] RCU debugfs-based tracing is enabled. [ 0.000000] Hierarchical RCU autobalancing is disabled. [ 0.000000] RCU dyntick-idle grace-period acceleration is enabled. [ 0.000000] Additional per-CPU info printed with stalls. [ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4. [ 0.000000] NR_IRQS:4352 nr_irqs:712 16 [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] hpet clockevent registered [ 0.000000] tsc: Detected 2493.748 MHz processor [ 0.008000] Calibrating delay loop (skipped) preset value.. 4987.49 BogoMIPS (lpj=9974992) [ 0.008000] pid_max: default: 32768 minimum: 301 [ 0.008000] Security Framework initialized [ 0.008000] AppArmor: AppArmor initialized [ 0.008000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.009317] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.010519] Mount-cache hash table entries: 256 [ 0.011444] Initializing cgroup subsys cpuacct [ 0.012008] Initializing cgroup subsys devices [ 0.012514] Initializing cgroup subsys freezer [ 0.013011] Initializing cgroup subsys blkio [ 0.013518] Initializing cgroup subsys perf_event [ 0.014140] mce: CPU supports 10 MCE banks [ 0.014697] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.014697] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.014697] tlb_flushall_shift: 6 [ 0.016445] Freeing SMP alternatives: 24k freed [ 0.022822] ACPI: Core revision 20130117 [ 0.024299] ACPI: All ACPI Tables successfully acquired [ 0.025061] ftrace: allocating 26131 entries in 103 pages [ 0.033967] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.036003] smpboot: CPU0: Intel Core 2 Duo P9xxx (Penryn Class Core 2) (fam: 06, model: 02, stepping: 03) [ 0.040000] Performance Events: unsupported p6 CPU model 2 no PMU driver, software events only. [ 0.061882] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.008000] kvm-clock: cpu 1, msr 0:7fffa041, secondary cpu clock [ 0.084066] KVM setup async PF for cpu 1 [ 0.085434] kvm-stealtime: cpu 1, msr 7fc8dec0 [ 0.008000] kvm-clock: cpu 2, msr 0:7fffa081, secondary cpu clock [ 0.112063] KVM setup async PF for cpu 2 [ 0.113198] kvm-stealtime: cpu 2, msr 7fd0dec0 [ 0.068167] smpboot: Booting Node 0, Processors #1 #2 #3 OK [ 0.008000] kvm-clock: cpu 3, msr 0:7fffa0c1, secondary cpu clock [ 0.136071] Brought up 4 CPUs [ 0.136062] KVM setup async PF for cpu 3 [ 0.136067] kvm-stealtime: cpu 3, msr 7fd8dec0 [ 0.140003] smpboot: Total of 4 processors activated (19949.98 BogoMIPS) [ 0.141366] devtmpfs: initialized [ 0.145532] EVM: security.selinux [ 0.145987] EVM: security.SMACK64 [ 0.146435] EVM: security.capability [ 0.148804] regulator-dummy: no parameters [ 0.149392] RTC time: 11:42:48, date: 02/13/13 [ 0.149968] NET: Registered protocol family 16 [ 0.150782] ACPI: bus type pci registered [ 0.151412] PCI: Using configuration type 1 for base access [ 0.153046] bio: create slab <bio-0> at 0 [ 0.153046] ACPI: Added _OSI(Module Device) [ 0.153046] ACPI: Added _OSI(Processor Device) [ 0.153084] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.153582] ACPI: Added _OSI(Processor Aggregator Device) [ 0.156801] ACPI: EC: Look up EC in DSDT [ 0.158483] ACPI: Interpreter enabled [ 0.158954] ACPI: (supports S0ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20130117/hwxface-568) [ 0.160419] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20130117/hwxface-568) [ 0.161540] S3 S4 S5) [ 0.162285] ACPI: Using IOAPIC for interrupt routing [ 0.162807] PCI: Ignoring host bridge windows from ACPI; if necessary, use "pci=use_crs" and report a bug [ 0.166785] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 0.167343] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] [ 0.167551] acpi PNP0A03:00: ACPI _OSC support notification failed, disabling PCIe ASPM [ 0.168004] acpi PNP0A03:00: Unable to request _OSC control (_OSC support mask: 0x08) [ 0.168861] acpi PNP0A03:00: host bridge window [io 0x0000-0x0cf7] (ignored) [ 0.168863] acpi PNP0A03:00: host bridge window [io 0x0d00-0xffff] (ignored) [ 0.168866] acpi PNP0A03:00: host bridge window [mem 0x000a0000-0x000bffff] (ignored) [ 0.168868] acpi PNP0A03:00: host bridge window [mem 0xe0000000-0xfebfffff] (ignored) [ 0.168871] PCI: root bus 00: using default resources [ 0.168874] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 0.169881] PCI host bridge to bus 0000:00 [ 0.170357] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.170882] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 0.171437] pci_bus 0000:00: root bus resource [mem 0x00000000-0xffffffffff] [ 0.172057] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 0.172610] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100 [ 0.173337] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180 [ 0.176004] pci 0000:00:01.1: reg 20: [io 0xc0a0-0xc0af] [ 0.177089] pci 0000:00:01.2: [8086:7020] type 00 class 0x0c0300 [ 0.179236] pci 0000:00:01.2: reg 20: [io 0xc040-0xc05f] [ 0.180230] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 0.180815] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 0.181662] pci 0000:00:01.3: quirk: [io 0xb100-0xb10f] claimed by PIIX4 SMB [ 0.184273] pci 0000:00:02.0: [1234:1111] type 00 class 0x030000 [ 0.188404] pci 0000:00:02.0: reg 10: [mem 0xfd000000-0xfdffffff pref] [ 0.193663] pci 0000:00:02.0: reg 30: [mem 0xfebd0000-0xfebdffff pref] [ 0.194262] pci 0000:00:03.0: [1af4:1000] type 00 class 0x020000 [ 0.195086] pci 0000:00:03.0: reg 10: [io 0xc060-0xc07f] [ 0.195843] pci 0000:00:03.0: reg 14: [mem 0xfebf4000-0xfebf4fff] [ 0.199384] pci 0000:00:03.0: reg 30: [mem 0xfebe0000-0xfebeffff pref] [ 0.200191] pci 0000:00:04.0: [8086:2668] type 00 class 0x040300 [ 0.200684] pci 0000:00:04.0: reg 10: [mem 0xfebf0000-0xfebf3fff] [ 0.203669] pci 0000:00:05.0: [1af4:1001] type 00 class 0x010000 [ 0.204400] pci 0000:00:05.0: reg 10: [io 0xc000-0xc03f] [ 0.205156] pci 0000:00:05.0: reg 14: [mem 0xfebf5000-0xfebf5fff] [ 0.209168] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 0.209640] pci 0000:00:06.0: reg 10: [io 0xc080-0xc09f] [ 0.212893] ACPI _OSC control for PCIe not granted, disabling ASPM [ 0.214013] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 0.216133] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 0.217338] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 0.218518] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 0.219703] ACPI: PCI Interrupt Link [LNKS] (IRQs 9) *0 [ 0.221201] ACPI: Enabled 16 GPEs in block 00 to 0F [ 0.221941] acpi root: \_SB_.PCI0 notify handler is installed [ 0.221967] Found 1 acpi root devices [ 0.222421] ACPI: No dock devices found. [ 0.223107] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none [ 0.224004] vgaarb: loaded [ 0.224436] vgaarb: bridge control possible 0000:00:02.0 [ 0.225340] SCSI subsystem initialized [ 0.225819] ACPI: bus type scsi registered [ 0.226480] libata version 3.00 loaded. [ 0.226480] ACPI: bus type usb registered [ 0.226480] usbcore: registered new interface driver usbfs [ 0.228024] usbcore: registered new interface driver hub [ 0.228594] usbcore: registered new device driver usb [ 0.228696] PCI: Using ACPI for IRQ routing [ 0.228696] PCI: pci_cache_line_size set to 64 bytes [ 0.228836] e820: reserve RAM buffer [mem 0x0009dc00-0x0009ffff] [ 0.228843] e820: reserve RAM buffer [mem 0x7fffe000-0x7fffffff] [ 0.229114] NetLabel: Initializing [ 0.229575] NetLabel: domain hash size = 128 [ 0.230064] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.232020] NetLabel: unlabeled traffic allowed by default [ 0.232588] HPET: 3 timers in total, 0 timers will be used for per-cpu timer [ 0.232779] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 0.233708] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 0.248083] Switching to clocksource kvm-clock [ 0.261422] AppArmor: AppArmor Filesystem Enabled [ 0.262010] pnp: PnP ACPI init [ 0.262492] ACPI: bus type pnp registered [ 0.263094] pnp 00:00: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.263208] pnp 00:01: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.263274] pnp 00:02: Plug and Play ACPI device, IDs PNP0f13 (active) [ 0.263318] pnp 00:03: [dma 2] [ 0.263349] pnp 00:03: Plug and Play ACPI device, IDs PNP0700 (active) [ 0.263487] pnp 00:04: Plug and Play ACPI device, IDs PNP0501 (active) [ 0.263667] pnp 00:05: Plug and Play ACPI device, IDs PNP0103 (active) [ 0.263827] pnp: PnP ACPI: found 6 devices [ 0.264355] ACPI: ACPI bus type pnp unregistered [ 0.276506] pci_bus 0000:00: resource 4 [io 0x0000-0xffff] [ 0.276509] pci_bus 0000:00: resource 5 [mem 0x00000000-0xffffffffff] [ 0.276564] NET: Registered protocol family 2 [ 0.279238] TCP established hash table entries: 16384 (order: 6, 262144 bytes) [ 0.280359] TCP bind hash table entries: 16384 (order: 6, 262144 bytes) [ 0.281125] TCP: Hash tables configured (established 16384 bind 16384) [ 0.281838] TCP: reno registered [ 0.282300] UDP hash table entries: 1024 (order: 3, 32768 bytes) [ 0.282883] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes) [ 0.283581] NET: Registered protocol family 1 [ 0.284137] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 0.284788] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 0.285381] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 0.286132] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11 [ 0.286839] pci 0000:00:02.0: Boot video device [ 0.286908] PCI: CLS 0 bytes, default 64 [ 0.287004] Trying to unpack rootfs image as initramfs... [ 0.618372] Freeing initrd memory: 14020k freed [ 0.626237] audit: initializing netlink socket (disabled) [ 0.626811] type=2000 audit(1360755767.624:1): initialized [ 0.652081] bounce pool size: 64 pages [ 0.652603] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.655393] VFS: Disk quotas dquot_6.5.2 [ 0.655959] Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.657341] fuse init (API version 7.21) [ 0.657992] msgmni has been set to 3998 [ 0.660067] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252) [ 0.661011] io scheduler noop registered [ 0.661487] io scheduler deadline registered [ 0.661973] io scheduler cfq registered (default) [ 0.662604] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.663155] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.663800] intel_idle: does not run on family 6 model 2 [ 0.663896] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 0.664776] ACPI: Power Button [PWRF] [ 0.667448] GHES: HEST is not enabled! [ 0.668288] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10 [ 0.668892] virtio-pci 0000:00:03.0: setting latency timer to 64 [ 0.669208] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10 [ 0.669783] virtio-pci 0000:00:05.0: setting latency timer to 64 [ 0.670318] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11 [ 0.670893] virtio-pci 0000:00:06.0: setting latency timer to 64 [ 0.671097] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 0.694246] 00:04: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [ 0.698509] Linux agpgart interface v0.103 [ 0.701963] brd: module loaded [ 0.703922] loop: module loaded [ 0.704686] virtio-pci 0000:00:05.0: irq 40 for MSI/MSI-X [ 0.704718] virtio-pci 0000:00:05.0: irq 41 for MSI/MSI-X [ 0.705826] vda: vda1 vda2 < vda5 > [ 0.707141] ata_piix 0000:00:01.1: version 2.13 [ 0.707257] ata_piix 0000:00:01.1: setting latency timer to 64 [ 0.707844] scsi0 : ata_piix [ 0.708518] scsi1 : ata_piix [ 0.708997] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc0a0 irq 14 [ 0.709569] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc0a8 irq 15 [ 0.710486] libphy: Fixed MDIO Bus: probed [ 0.710995] tun: Universal TUN/TAP device driver, 1.6 [ 0.711499] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com> [ 0.712894] virtio-pci 0000:00:03.0: irq 42 for MSI/MSI-X [ 0.712936] virtio-pci 0000:00:03.0: irq 43 for MSI/MSI-X [ 0.712968] virtio-pci 0000:00:03.0: irq 44 for MSI/MSI-X [ 0.714604] PPP generic driver version 2.4.2 [ 0.715227] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.715801] ehci-pci: EHCI PCI platform driver [ 0.716381] ehci-platform: EHCI generic platform driver [ 0.716916] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.717489] uhci_hcd: USB Universal Host Controller Interface driver [ 0.718149] uhci_hcd 0000:00:01.2: setting latency timer to 64 [ 0.718163] uhci_hcd 0000:00:01.2: UHCI Host Controller [ 0.718699] uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1 [ 0.719685] uhci_hcd 0000:00:01.2: irq 11, io base 0x0000c040 [ 0.720509] hub 1-0:1.0: USB hub found [ 0.720996] hub 1-0:1.0: 2 ports detected [ 0.721694] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 [ 0.723493] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 0.724090] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 0.724740] mousedev: PS/2 mouse device common for all mice [ 0.725697] rtc_cmos 00:00: RTC can wake from S4 [ 0.726969] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1 [ 0.728448] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0 [ 0.729177] rtc0: alarms up to one day, 114 bytes nvram, hpet irqs [ 0.729901] device-mapper: uevent: version 1.0.3 [ 0.730538] device-mapper: ioctl: 4.24.0-ioctl (2013-01-15) initialised: dm-devel@redhat.com [ 0.731441] cpuidle: using governor ladder [ 0.731933] cpuidle: using governor menu [ 0.732454] EFI Variables Facility v0.08 2004-May-17 [ 0.733228] ashmem: initialized [ 0.733890] TCP: cubic registered [ 0.734479] NET: Registered protocol family 10 [ 0.735360] NET: Registered protocol family 17 [ 0.735886] Key type dns_resolver registered [ 0.736735] PM: Hibernation image not present or could not be loaded. [ 0.736749] registered taskstats version 1 [ 0.747253] Key type trusted registered [ 0.754548] Key type encrypted registered [ 0.763988] Magic number: 1:800:731 [ 0.764520] block vda2: hash matches [ 0.765217] rtc_cmos 00:00: setting system clock to 2013-02-13 11:42:48 UTC (1360755768) [ 0.766310] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 0.766899] EDD information not available. [ 0.868566] ata2.01: NODEV after polling detection [ 0.868913] ata2.00: ATAPI: QEMU DVD-ROM, 1.2.0, max UDMA/100 [ 0.870024] ata2.00: configured for MWDMA2 [ 0.871482] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 1.2. PQ: 0 ANSI: 5 [ 0.873723] sr0: scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray [ 0.874271] cdrom: Uniform CD-ROM driver Revision: 3.20 [ 0.875093] sr 1:0:0:0: Attached scsi CD-ROM sr0 [ 0.875422] sr 1:0:0:0: Attached scsi generic sg0 type 5 [ 0.877557] Freeing unused kernel memory: 1160k freed [ 0.878667] Write protecting the kernel read-only data: 12288k [ 0.882409] Freeing unused kernel memory: 1120k freed [ 0.885468] Freeing unused kernel memory: 904k freed <30>[ 0.959222] udevd[108]: starting version 175 [ 0.965536] udevd[108]: segfault at ffffffffff5fd0e0 ip 00007fffc4bfe77f sp 00007fffc4ba0af8 error d [ 1.624134] tsc: Refined TSC clocksource calibration: 2493.749 MHz [ 154.301427] EXT4-fs (vda1): recovery complete [ 154.319257] EXT4-fs (vda1): mounted filesystem with ordered data mode. Opts: (null) ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-13 11:57 ` Peter Hurley @ 2013-02-18 22:59 ` Marcelo Tosatti 2013-02-19 1:12 ` Peter Hurley 0 siblings, 1 reply; 11+ messages in thread From: Marcelo Tosatti @ 2013-02-18 22:59 UTC (permalink / raw) To: Peter Hurley; +Cc: Gleb Natapov, H. Peter Anvin, linux-kernel, kvm On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > device/console): > > > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > > > and boots to an initramfs prompt. > > > > > > > > git bisect (log attached) blames: > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > Merge: 3596f5b 949db15 > > > > Author: H. Peter Anvin <hpa@linux.intel.com> > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > current upstream from Linus. > > > > > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > driver. > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible there? > > He is using 64bit guest and on those __pa() happens to be working. Is it > > possible that slow_virt_to_phys() does not work as expected? Peter (the > > bug reporter :)) can you run your guest kernel with loglevel=7 and > > attach send me console output? > > Attached. > > BTW, this message happens on 'good' boots too: > > [ 0.000000] ------------[ cut here ]------------ > [ 0.000000] WARNING: at /home/peter/src/kernels/next/arch/x86/kernel/pvclock.c:182 pvclock_init_vsyscall+0x22/0x60() > [ 0.000000] Hardware name: Bochs > [ 0.000000] Modules linked in: > [ 0.000000] Pid: 0, comm: swapper Not tainted 3.8.0-next-20130204-xeon #20130204 > [ 0.000000] Call Trace: > [ 0.000000] [<ffffffff8105812f>] warn_slowpath_common+0x7f/0xc0 > [ 0.000000] [<ffffffff8105818a>] warn_slowpath_null+0x1a/0x20 > [ 0.000000] [<ffffffff81d20521>] pvclock_init_vsyscall+0x22/0x60 > [ 0.000000] [<ffffffff81d20480>] kvm_setup_vsyscall_timeinfo+0x74/0xd8 > [ 0.000000] [<ffffffff81d201d1>] kvm_guest_init+0xd0/0xe9 > [ 0.000000] [<ffffffff81d13f7c>] setup_arch+0xbee/0xcaf > [ 0.000000] [<ffffffff816cbceb>] ? printk+0x61/0x63 > [ 0.000000] [<ffffffff81d0cbc3>] start_kernel+0xd3/0x3f0 > [ 0.000000] [<ffffffff81d0c5e4>] x86_64_start_reservations+0x2a/0x2c > [ 0.000000] [<ffffffff81d0c6d7>] x86_64_start_kernel+0xf1/0x100 > [ 0.000000] ---[ end trace b47bb564b2d6ec76 ]--- > > Regards, > Peter Hurley Sending a patch for this, thanks for the report. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-18 22:59 ` Marcelo Tosatti @ 2013-02-19 1:12 ` Peter Hurley 2013-02-19 8:26 ` Gleb Natapov 0 siblings, 1 reply; 11+ messages in thread From: Peter Hurley @ 2013-02-19 1:12 UTC (permalink / raw) To: Marcelo Tosatti; +Cc: Gleb Natapov, H. Peter Anvin, linux-kernel, kvm On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > device/console): > > > > > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > Merge: 3596f5b 949db15 > > > > > Author: H. Peter Anvin <hpa@linux.intel.com> > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > > current upstream from Linus. > > > > > > > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > > driver. > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > there? This is in the linux-next repo (any git tag after 'next-20130204' will reproduce this). It's a pretty large merge commit. This doesn't happen on 3.8-rc7. I'll try to repro this on kvm.git sometime this week. Otherwise, we can wait for it to show up in 3.9. Regards, Peter Hurley ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-19 1:12 ` Peter Hurley @ 2013-02-19 8:26 ` Gleb Natapov 2013-02-20 17:20 ` Peter Hurley 2013-02-24 21:23 ` Peter Hurley 0 siblings, 2 replies; 11+ messages in thread From: Gleb Natapov @ 2013-02-19 8:26 UTC (permalink / raw) To: Peter Hurley; +Cc: Marcelo Tosatti, H. Peter Anvin, linux-kernel, kvm On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > > device/console): > > > > > > > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > > Merge: 3596f5b 949db15 > > > > > > Author: H. Peter Anvin <hpa@linux.intel.com> > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > > > current upstream from Linus. > > > > > > > > > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > > > driver. > > > > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > > there? > > This is in the linux-next repo (any git tag after 'next-20130204' will > reproduce this). It's a pretty large merge commit. > > This doesn't happen on 3.8-rc7. > > I'll try to repro this on kvm.git sometime this week. Otherwise, we can > wait for it to show up in 3.9. > Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next and reproduce? -- Gleb. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-19 8:26 ` Gleb Natapov @ 2013-02-20 17:20 ` Peter Hurley 2013-02-24 21:23 ` Peter Hurley 1 sibling, 0 replies; 11+ messages in thread From: Peter Hurley @ 2013-02-20 17:20 UTC (permalink / raw) To: Gleb Natapov; +Cc: Marcelo Tosatti, H. Peter Anvin, linux-kernel, kvm On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote: > On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: > > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > > > device/console): > > > > > > > > > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > > > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > > > Merge: 3596f5b 949db15 > > > > > > > Author: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > > > > current upstream from Linus. > > > > > > > > > > > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > > > > driver. > > > > > > > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > > > > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > > > there? > > > > This is in the linux-next repo (any git tag after 'next-20130204' will > > reproduce this). It's a pretty large merge commit. > > > > This doesn't happen on 3.8-rc7. > > > > I'll try to repro this on kvm.git sometime this week. Otherwise, we can > > wait for it to show up in 3.9. > > > Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next and reproduce? Still reproduced on next-20130204 after reverting 5dfd486c. Haven't tested kvm.git and newest next. ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-19 8:26 ` Gleb Natapov 2013-02-20 17:20 ` Peter Hurley @ 2013-02-24 21:23 ` Peter Hurley 2013-02-27 19:43 ` Marcelo Tosatti 1 sibling, 1 reply; 11+ messages in thread From: Peter Hurley @ 2013-02-24 21:23 UTC (permalink / raw) To: Gleb Natapov; +Cc: Marcelo Tosatti, H. Peter Anvin, linux-kernel, kvm On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote: > On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: > > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > > > device/console): > > > > > > > > > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > > > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > > > Merge: 3596f5b 949db15 > > > > > > > Author: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > > > > current upstream from Linus. > > > > > > > > > > > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > > > > driver. > > > > > > > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > > > > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > > > there? > > > > This is in the linux-next repo (any git tag after 'next-20130204' will > > reproduce this). It's a pretty large merge commit. > > > > This doesn't happen on 3.8-rc7. > > > > I'll try to repro this on kvm.git sometime this week. Otherwise, we can > > wait for it to show up in 3.9. > > > Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next and reproduce? Ok, found and fixed. This will need to go to stable for 3.8 as well. Regards, Peter Hurley --- >% --- From: Peter Hurley <peter@hurleysoftware.com> Date: Sun, 24 Feb 2013 10:55:09 -0500 Subject: [PATCH] x86/kvm: Fix pvclock vsyscall fixmap The physical memory fixmapped for the pvclock clock_gettime vsyscall was allocated, and thus is not a kernel symbol. __pa() is the proper method to use in this case. Fixes the crash below when booting a next-20130204+ smp guest on a 3.8-rc5+ KVM host. [ 0.666410] udevd[97]: starting version 175 [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d Signed-off-by: Peter Hurley <peter@hurleysoftware.com> --- arch/x86/kernel/pvclock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 85c3959..2cb9470 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct pvclock_vsyscall_time_info *i, for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) { __set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx, - __pa_symbol(i) + (idx*PAGE_SIZE), + __pa(i) + (idx*PAGE_SIZE), PAGE_KERNEL_VVAR); } -- 1.8.1.2 ^ permalink raw reply related [flat|nested] 11+ messages in thread
* Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d 2013-02-24 21:23 ` Peter Hurley @ 2013-02-27 19:43 ` Marcelo Tosatti 2013-02-27 20:28 ` [PATCH] x86/kvm: Fix pvclock vsyscall fixmap Peter Hurley 0 siblings, 1 reply; 11+ messages in thread From: Marcelo Tosatti @ 2013-02-27 19:43 UTC (permalink / raw) To: Peter Hurley; +Cc: Gleb Natapov, H. Peter Anvin, linux-kernel, kvm On Sun, Feb 24, 2013 at 04:23:44PM -0500, Peter Hurley wrote: > On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote: > > On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: > > > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > > > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > > > > device/console): > > > > > > > > > > > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > > > > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > > > > Merge: 3596f5b 949db15 > > > > > > > > Author: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > > > > > current upstream from Linus. > > > > > > > > > > > > > > > > Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> > > > > > > > > > > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > > > > > driver. > > > > > > > > > > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > > > > > > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > > > > there? > > > > > > This is in the linux-next repo (any git tag after 'next-20130204' will > > > reproduce this). It's a pretty large merge commit. > > > > > > This doesn't happen on 3.8-rc7. > > > > > > I'll try to repro this on kvm.git sometime this week. Otherwise, we can > > > wait for it to show up in 3.9. > > > > > Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next and reproduce? > > Ok, found and fixed. This will need to go to stable for 3.8 as well. ACK, please send an email with the patch to kvm@vger.kernel.org. > Regards, > Peter Hurley > > --- >% --- > From: Peter Hurley <peter@hurleysoftware.com> > Date: Sun, 24 Feb 2013 10:55:09 -0500 > Subject: [PATCH] x86/kvm: Fix pvclock vsyscall fixmap > > The physical memory fixmapped for the pvclock clock_gettime vsyscall > was allocated, and thus is not a kernel symbol. __pa() is the proper > method to use in this case. > > Fixes the crash below when booting a next-20130204+ smp guest on a > 3.8-rc5+ KVM host. > > [ 0.666410] udevd[97]: starting version 175 > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 > ip 00007fff069e277f sp 00007fff068c9ef8 error d > > Signed-off-by: Peter Hurley <peter@hurleysoftware.com> > --- > arch/x86/kernel/pvclock.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c > index 85c3959..2cb9470 100644 > --- a/arch/x86/kernel/pvclock.c > +++ b/arch/x86/kernel/pvclock.c > @@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct pvclock_vsyscall_time_info *i, > > for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) { > __set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx, > - __pa_symbol(i) + (idx*PAGE_SIZE), > + __pa(i) + (idx*PAGE_SIZE), > PAGE_KERNEL_VVAR); > } > > -- > 1.8.1.2 > > > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH] x86/kvm: Fix pvclock vsyscall fixmap 2013-02-27 19:43 ` Marcelo Tosatti @ 2013-02-27 20:28 ` Peter Hurley 0 siblings, 0 replies; 11+ messages in thread From: Peter Hurley @ 2013-02-27 20:28 UTC (permalink / raw) To: kvm Cc: Marcelo Tosatti, linux-kernel, H. Peter Anvin, Gleb Natapov, Peter Hurley The physical memory fixmapped for the pvclock clock_gettime vsyscall was allocated, and thus is not a kernel symbol. __pa() is the proper method to use in this case. Fixes the crash below when booting a next-20130204+ smp guest on a 3.8-rc5+ KVM host. [ 0.666410] udevd[97]: starting version 175 [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d Signed-off-by: Peter Hurley <peter@hurleysoftware.com> --- arch/x86/kernel/pvclock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 85c3959..2cb9470 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct pvclock_vsyscall_time_info *i, for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) { __set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx, - __pa_symbol(i) + (idx*PAGE_SIZE), + __pa(i) + (idx*PAGE_SIZE), PAGE_KERNEL_VVAR); } -- 1.8.1.2 ^ permalink raw reply related [flat|nested] 11+ messages in thread
end of thread, other threads:[~2013-02-27 20:28 UTC | newest] Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-02-13 0:26 [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d Peter Hurley 2013-02-13 0:39 ` H. Peter Anvin 2013-02-13 10:51 ` Gleb Natapov 2013-02-13 11:57 ` Peter Hurley 2013-02-18 22:59 ` Marcelo Tosatti 2013-02-19 1:12 ` Peter Hurley 2013-02-19 8:26 ` Gleb Natapov 2013-02-20 17:20 ` Peter Hurley 2013-02-24 21:23 ` Peter Hurley 2013-02-27 19:43 ` Marcelo Tosatti 2013-02-27 20:28 ` [PATCH] x86/kvm: Fix pvclock vsyscall fixmap Peter Hurley
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